Abstract: An integrated OLED display and touch screen is made by the steps of: providing a substrate; forming a top-emitting OLED display on the substrate, the display including light blocking circuit elements extending to an edge of the substrate; providing a transparent encapsulating cover; forming a touch screen on a first side of the transparent encapsulating cover, the touch screen having light blocking circuit elements extending to a corresponding edge of the transparent encapsulating cover; locating the encapsulating cover over the substrate with a light curable adhesive located between the light blocking circuit elements of the display and the touch screen; and curing the light curable adhesive to hermetically encapsulate the OLED display.

Abstract: A joy stick includes a base, and a post having a lower portion extending through a retainer which is rotatable about the base. A spring is biased between the post and the retainer, and another spring is biased between the base and the post so that the post is biased upward relative to the retainer and the base. Four switches have blades disposed beside the lower portion of the post. The blades can be depressed by the lower portion of the post. When the post is depressed, the depression force on the post can be balanced by the springs so that the joy stick will not be worn out very quick and can endure longer.